Microlife 3BT0-APC Instruction Manual
MLUBPT0-AP-APC-MAR06-1 4/5/06 9:36 AM Page 1
Advanced
Blood Pressure
Monitor
with Irregular Heartbeat Detection
Instruction Booklet for model# 3BT0-AP, 3BT0-APC
US Patent #’s 6,485,429 (Irregular Heartbeat Detector)
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Automatic Blood Pressure Monitor
Instruction Manual
Table of contents
1. Introduction
1.1. Features of your blood pressure monitor
1.2. Important information about self measurement
2. Important information on blood pressure and its measurement
2.1. How does high/low blood pressure arise?
2.2. Which values are normal?
2.3. What can be done if regular high/low values are obtained?
2.4. Irregular Heartbeat Detector
3. Components of your blood pressure monitor
4. Operation of your blood pressure monitor
4.1. Inserting the batteries
4.2. Using an A/C power adapter
4.3. Tube connection
Measurement Procedure
5.1. Before measurement
5.2. Common sources of error
5.3. Fitting the cuff
5.4. Setting the time and date
5.5. Measuring procedure
5.6. Memory – displaying the last measurement
5.7. Discontinuing a measurement
6. Error Messages/Troubleshooting
7. Care and maintenance
8. Warranty
9. Certifications
10. Technical specifications
11. How to Contact Us
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1. Introduction
1.1.Features of your Microlife automatic blood pressure monitor,
model # 3BT0-AP or 3BT0-APC
Your Microlife blood pressure monitor is a fully automatic digital blood pressure measuring device with an integrated Irregular Heartbeat Detector, for use by adults on the upper
arm at home or in your doctor’s/nurse’s office. It enables very fast and reliable measurement of the systolic and diastolic blood pressure as well as the pulse by way of the oscillometric method. This device offers clinically proven accuracy and has been designed to
be user friendly.
Before using, please read this instruction manual carefully and then keep it in a safe
place. Please contact your doctor for further questions on the subject of blood pressure
and its measurement.
Attention!
1.2.Important information about self-measurement
• Self-measurement means Control, not diagnosis or treatment. Unusual values
must always be discussed with your doctor. Under no circumstances should you
alter the dosages of any drugs prescribed by your doctor.
• The pulse display is not suitable for checking the frequency of heart pacemakers!
• In cases of irregular heartbeat (Arrhythmia), measurements made with this instrument
should only be evaluated after consultation with your doctor.
Electromagnetic interference:
The device contains sensitive electronic components. Avoid strong electrical or electromagnetic fields in the direct vicinity of the device (e.g. mobile telephones, microwave
ovens). These can lead to temporary impairment of the measuring accuracy.
2. Important information on blood pressure and its measurement
2.1. How does high/low blood pressure arise?
Your level of blood pressure is determined in the circulatory center of the brain and
adjusts to a variety of situations through feedback from the nervous system. To adjust
blood pressure, the strength and frequency of the heart (Pulse), as well as the width of circulatory blood vessels is altered. Blood vessel width is effected by fine muscles in the
blood vessel walls.
Your level of arterial blood pressure changes periodically during heart activity: During the
“blood ejection” (Systole) the value is highest (systolic blood pressure value). At the end
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of the heart’s “rest period” (Diastole) pressure is lowest (diastolic blood pressure value).
Blood pressure values must lie within certain normal ranges in order to prevent particular
diseases.
2.2. Which values are normal?
Blood pressure is too high if your diastolic pressure is above 90 mmHg and/or your
systolic blood pressure is over 160 mmHg,
while at rest. In this case, please con-
sult your physician immediately. Long-term values at this level endanger your health
due to continual damage to the blood vessels in you body.
If your systolic blood pressure values are between 140 mmHg and 160mmHg and/or
the diastolic blood pressure values between 90 mmHg and 95mmHg, consult your
physician. Regular self-checks are necessary.
If you have blood pressure values that are too low, (i.e., systolic values under
105mmHg and/or diastolic values under 60 mmHg), consult your physician.
Even with normal blood pressure values, a regular self-check with your blood pressure monitor is recommended. You can detect possible changes in your values early
and react appropriately.
If you are undergoing medical treatment to control your blood pressure, keep a
record of values along with time of day and date. Show these values to your physi-
Never use the results of your measurements to independently alter the
cian.
drug doses prescribed by your physician.
Which values are normal?
The following standards for assessing high blood pressure (without regard to age)
have been established by the National Institutes of Health JNC7.
Category Systolic Diastolic
(mmHg) (mmHg)
Normal <120 <80
Pre-Hypertension 120-139 80-89
Hypertension
Stage 1 Hypertension 140-159 90-99
Stage 2 Hypertension >160 >100
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☞ Further information
• If your values are mostly normal under resting conditions but exceptionally high under
conditions of physical or psychological stress, it is possible that you are suffering from
so-called “labile hypertension.” Consult your doctor.
Correctly measured diastolic blood pressure values above 120mmHg and
•
require immediate medical treatment.
2.3. What can be done if regular high or low values are obtained?
a) Consult your doctor.
b) Increased blood pressure values (various forms of hypertension) are associated with
considerable health risks over time. Arterial blood vessels in your body are endangered
due to constriction caused by deposits in the vessel walls (Arteriosclerosis). A deficient
supply of blood to important organs (heart, brain, muscles) can result from arteriosclerosis. Furthermore, the heart will become structurally damaged with increased blood
pressure values.
c) There are many different causes of high blood pressure. We differentiate between the
common primary (essential) hypertension, and secondary hypertension. The latter
group can be ascribed to specific organ malfunctions. Please consult your doctor for
information about the possible origins of your own increased blood pressure values.
d) There are measures which you can take to reduce and even prevent high blood pres-
sure. These measures must be permanent lifestyle changes.
A) Eating habits
• Strive for a normal weight corresponding to your age. See your doctor for your ideal
weight.
• Avoid excessive consumption of common salt.
• Avoid fatty foods.
B) Previous illnesses
• Consistently follow all medical instructions for treating illness such as:
- Diabetes (Diabetes mellitus or sugar diabetes)
- Fat metabolism disorder
- Gout
C) Habits
• Give up smoking completely.
• Drink only moderate amounts of alcohol.
• Restrict your caffeine consumption (coffee, tea, chocolate).
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D) Your Physical condition
• After a medical examination, and with your doctor’s approval and direction;
exercise.
• Choose sports which require stamina and avoid those which require strength.
• Avoid reaching the limit of your performance.
• With previous illnesses and/or an age of over 40 years, please consult your doctor
before beginning your exercise routine. You must receive advise regarding the type and
extent of exercise that is appropriate for you.
2.4. Irregular Heartbeat Detector
The appearance of this symbol signifies that a certain irregular heartbeat
was detected which could cause cardiovascular disease. This indicator is only a
caution. The Microlife Fully Automatic Blood Pressure Monitor with Irregular
Heartbeat Detection can detect blood pressure and pulse rate measurement with
specifications even when the patient is having an irregular heartbeat interval. It is
important that you be relaxed, remain still and do not talk during the measurements.
Note: We recommend contacting your physician if you see this “ “ icon frequently.
CAUTION: An irregular heartbeat can be a serious medical condition requiring
medical attention. See your doctor if you suspect you have an irregular heartbeat.
3. Components of your blood pressure monitor
a) Measuring unit
AC/DC Power Port
Cuff Connection Port
5
Time Button
START/STOP Button Memory Button
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++
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b) Upper arm cuffs:
Type S101 for arm circumference 22-33.7 cm or
9.5” - 13.25” (included)
Type S102 for arm circumference 30.5-40.64 cm
12” - 16” (order as a special accessory/included
with Model #3BT0-APC)
Please Note:
Arm circumference should be measured with a measuring tape in the middle of the relaxed
upper arm. Do not force cuff connection into the opening. Make sure the cuff connection is
not pushed into the AC adapter port. If the cuff is too small, call Microlife for further information at 1-800-568-4147.
4. Operation of your blood pressure monitor
4.1. Inserting the batteries
After you have unpacked your device insert the batteries. The battery compartment is located on the back side of the device (see illustration).
a) Remove cover as illustrated.
b) Insert the batteries (4 AA, 1.5 V), following the
indicated polarity. (+ -)
c) If the low battery indicator appears in the dis-
play, the batteries are discharged and the unit
will not function.
d) If batteries are inserted incorrectly, the display
may function erratically or not at all.
Check battery polarity.
Low Battery Indicator
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Attention!
• After the low battery indicator appears, the device won’t function until the batteries
have been replaced.
• Please use “AA” Long-Life or Alkaline 1.5V Batteries.
Do not use rechargeable batteries.
•
• If the blood pressure monitor is not used for long periods, remove the batteries from
the device.
Functional check: Hold the On/Off button down to test all the display elements. When
functioning correctly many icons will appear.
4.2. Using an AC power adapter (special accessory/included with Model #3BT0-APC)
It is possible to operate this blood pressure instrument with an AC adapter. (output 6 V DC
/ 600 mA with DIN plug). Make certain that you use an adapter which fulfills the legal
requirements and electronic requirements in the U.S. (UL standard). Use of an AC adapter
other than a Microlife adapter may invalidate your warranty.
a) Push the plug into the socket at the left side
of the instrument.
b) Plug the AC adapter into a 110 V
Left Opening
power socket (U.S. or Canada).
c) Test that power is available by
pressing the On/Off button.
Note:
• No power is taken from the batteries while the AC adapter is connected to the instrument.
• If the power is interrupted during a measurement (e.g. by removal of the adapter from
the wall socket), the instrument must be reset by removing the plug from the instrument.
• Please call 1-800-568-4147 if you have questions
relating to the AC adapter.
4.3. Tube connection
Insert the cuff tube into the opening
provided on the side of the instrument,
as shown in the diagram.
Right Opening
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5. Measurement Procedure
Please note: You should always be seated before and during measurement.
5.1. Before measurement:
• Avoid eating and smoking as well as all forms of exertion directly before measurement. These factors influence the measurement result. Find time to relax by sitting in
an armchair in a quiet atmosphere for about ten minutes before measurement.
• Remove any garment that fits closely to your upper arm.
• Always measure on the same arm (normally left).
• Always perform measurements at the same time of day, since blood pressure changes
during the course of the day.
5.2. Common sources of error:
Note: Comparable blood pressure measurements always require the same conditions! Conditions should always be quiet.
•All efforts by the user to support the arm can increase blood pressure. Make sure you
are in a comfortable, relaxed position and do not flex any of the muscles in the measurement arm during the measurement. Use a cushion for support if necessary.
•If the arm artery lies considerably lower or higher than the heart, an erroneously high or
low blood pressure will be measured! Each 15cm (6 inch) difference in height between
your heart and the cuff results in a measurement error of 10 mmHg!
•Cuffs that are too narrow or too short result in false measurement values. Selecting the
correct cuff is extremely important. Cuff size is dependent upon the circumference of the
arm (measured in the center). The permissible range is printed on the cuff. If this is not
suitable for your use, please contact microlife USA. Large cuff sizes are sold separately.
Note: Only use clinically approved Microlife Cuffs!
•A loose cuff or a sideways protruding air pocket causes false measurement values.
•With repeated measurements, blood accumulates in the arm, which can lead to false
results. Consecutive blood pressure measurements should be repeated after a 1 minute
pause or after your arm has been held up in order to allow the accumulated blood to
flow away.
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5.3. Fitting the cuff
a) Pass the end of the cuff through the flat
metal ring so that a loop is formed. The velcro closer must be facing outward. (Ignore
this step if the cuff has already been prepared.)
b) Place the cuff over the left upper arm so that
the tube is closer to your lower arm.
c) Lay the cuff on the arm as illustrated. Make
certain that the lower edge of the cuff lies
approximately 3/4” to 1”(2 to 3cm) above the
elbow and that the tube is closer to the inner
side of the arm.
Important! The small white arrow on the
cuff must lie exactly over the artery which
runs down the inner side of the arm.
d) Tighten the cuff by pulling the end and close
the cuff by affixing the velcro.
e) There should be little free space between the
arm and the cuff. You should able to fit 2 fingers between your arm and the cuff. Clothing
must not restrict the arm. Any piece of clothing which does must be removed. Cuffs that
don’t fit properly result in false measurement
values. Measure your arm circumference if
you are not sure of proper fit. Larger cuffs are
available (Section 3B).
f) Lay your arm on a table (palm upward) so the
cuff is at the same height as your heart.
Make sure the tube is not kinked.
g) Remain seated quietly for two minutes
before you begin the measurement.
Left Arm
3
/4”-1”
tube
9
M
M
M
TIME
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Comment:
If it is not possible to fit the cuff to your left arm, it can also be
placed on your right arm. However, all measurements should be
made using the same arm.
Comparable blood pressure measurements always require the
same conditions (Relax for several minutes before a reading).
5.4. Setting the time and date
This blood pressure monitor incorporates an integrated clock with date display. Time and
date are recorded along with pressure and pulse. After new batteries have been inserted,
the clock begins to run from the following setting: 2000-01-01 00:00 O’clock.
You must then re-enter the date and current time. Please proceed as follows (Example:
Entering 2002-06-15 Time 09:30 AM):
1. Press the Time button for at least 3 seconds. The display
now indicates the set year, during which the four characters
blink.
2. The correct year can be entered by pressing the MEMORY
button. Once for each change.
(Example: 1 x press).
3. Press the Time button again. The display now switches to
the current date, during which the first character (month)
blinks.
Note: Holding the button down speeds up the procedure.
Cuff on
right arm
4. The current month can now be entered by pressing the
MEMORY button.
Example: pressing 6 x advances 6 months)
5. Press the Time button again. The last two characters (day)
are now blinking.
6. The current day can now be entered by pressing the MEM-
ORY button. (Example: 15 x presses advances the day from
the 1st to 15th)
7. Press the Time button again. The display now switches to
the current time, during which the first character (hour)
blinks.
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9. Press the User/Time button again. The last two characters (Minutes) now blink.
10. The minutes can now be entered by pressing the MEMORY button. (Example: 30 x
presses advances the time from 0 to 30 minutes)
5.5. Reading the set date
After all settings have been made, click the Time/Date button once. The date is briefly displayed and then the time. The input is now confirmed and the clock begins to run.
5.6. Measuring procedure
After the cuff has been appropriately positioned the
measurement can begin:
Pumping
Pressure
a) Press the ON/OFF/START button. The pump begins to
inflate the cuff. In the display, the increasing cuff pressure is continually displayed.
b) After automatically reaching an individual pressure,
the pump stops and the pressure slowly falls. The cuff
pressure is displayed during the measurement.
c) When the device has detected your pulse, the heart
Measuring
symbol in the display begins to blink and a beep tone
is audible for every pulse beat.
d) When the measurement has been concluded, a long
beep tone sounds. The measured systolic and diastolic
blood pressure values, as well as the pulse are now
displayed.
e) The appearance of this symbol signifies that a
certain irregular heartbeat was detected. This indicator is only a caution. It is important that you be
relaxed, remain still and do not talk during measurements. NOTE: We recommend contacting your physician if you see this icon frequently.
f) The measurement results are displayed until you
switch the device off. If no button is pressed for 5 minutes, the device switches off automatically.
Systolic
Diastolic
Pulse
ement
Measur
11
complete
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